03 rancher 350 chain tensioner - Honda ATV Forum
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post #1 of 6 (permalink) Old 09-15-2011, 09:22 PM Thread Starter
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03 rancher 350 chain tensioner

I am needing to replace the cam chain tensioner, can someone give me any tips? I have done some searching and saw that a few people said the engine had to be removed to do this. Is this correct?? Thanks,
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post #2 of 6 (permalink) Old 09-15-2011, 09:50 PM
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Welcome to the forums. Yes, that's correct. The engine has to come out of the frame and the rear crankcase cover has to come off. Next, the flywheel has to come off and then you can get to the tensioner and timing chain.

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post #3 of 6 (permalink) Old 09-15-2011, 10:30 PM Thread Starter
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Thank you for your help. I think i will finish up the top end and let the chain rattle until i am ready to rebuild. Thanks again
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post #4 of 6 (permalink) Old 09-15-2011, 10:46 PM
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Thank you for your help. I think i will finish up the top end and let the chain rattle until i am ready to rebuild. Thanks again
if your timming chain is '' rattling '' bad..and you keep ridding it..you better get ready to re-do that top end !!..your gonna bust your piston..bend or break a valve if that timming chain slips off the cam..you've been warned.

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '05 trx500fm
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post #5 of 6 (permalink) Old 09-27-2011, 03:22 PM Thread Starter
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Shadetree, i took your advise and pulled the engine. However the chain and tensioner was in good shape so i put everything back together. When i started the engine most if not all the (rattle/knock) was gone. I think what i was hearing was piston wobble. Whoever did the topend last time bored the cylinder, used the correct oversized piston, but they used the stock sized rings. The ring gap was close to 1/4 inch lol. Anyway everything seems good now, thanks for the info and advise.
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post #6 of 6 (permalink) Old 09-27-2011, 06:15 PM
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Shadetree, i took your advise and pulled the engine. However the chain and tensioner was in good shape so i put everything back together. When i started the engine most if not all the (rattle/knock) was gone. I think what i was hearing was piston wobble. Whoever did the topend last time bored the cylinder, used the correct oversized piston, but they used the stock sized rings. The ring gap was close to 1/4 inch lol. Anyway everything seems good now, thanks for the info and advise.
all good bro..i would hate to see you go through all that trouble..then have to re-do it again because of one tiny detail of not pulling the motor !!..lol. glad you did do it ..at least you can sleep at night..knowing your timming chain and slack adjuster is good !..lol.wasn't trying to scare you bro..just trying to save you some time and cash .

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '05 trx500fm
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